`binance.get_mkt_info()`: bleh, right `@lru_cache` dun work for async..

rekt_pps
Tyler Goodlet 2023-04-17 16:36:52 -04:00
parent 4b7ac1d895
commit 83f1922f6e
1 changed files with 21 additions and 5 deletions

View File

@ -23,7 +23,7 @@ Binance backend
""" """
from contextlib import asynccontextmanager as acm from contextlib import asynccontextmanager as acm
from datetime import datetime from datetime import datetime
from functools import lru_cache # from functools import lru_cache
from decimal import Decimal from decimal import Decimal
from typing import ( from typing import (
Any, Union, Optional, Any, Union, Optional,
@ -335,7 +335,7 @@ class Client:
@acm @acm
async def get_client() -> Client: async def get_client() -> Client:
client = Client() client = Client()
log.info(f'Caching exchange infos..') log.info('Caching exchange infos..')
await client.exch_info() await client.exch_info()
yield client yield client
@ -371,7 +371,13 @@ async def stream_messages(
timeouts += 1 timeouts += 1
if timeouts > 2: if timeouts > 2:
log.error("binance feed seems down and slow af? rebooting...") log.error("binance feed seems down and slow af? rebooting...")
await ws._connect() try:
await ws._connect()
except BaseException as err:
assert err
# Wut in the f#@$% is going on here.
with trio.CancelScope(shield=True):
await tractor.breakpoint()
continue continue
@ -476,12 +482,20 @@ async def open_history_client(
yield get_ohlc, {'erlangs': 3, 'rate': 3} yield get_ohlc, {'erlangs': 3, 'rate': 3}
@lru_cache # TODO: bleh, didn't we have an async version of
# this at some point?
# @lru_cache
async def get_mkt_info( async def get_mkt_info(
fqme: str, fqme: str,
_cache: dict[str, MktPair] = {}
) -> tuple[MktPair, Pair]: ) -> tuple[MktPair, Pair]:
both = _cache.get(fqme)
if both:
return both
async with open_cached_client('binance') as client: async with open_cached_client('binance') as client:
pair: Pair = await client.exch_info(fqme.upper()) pair: Pair = await client.exch_info(fqme.upper())
@ -501,7 +515,9 @@ async def get_mkt_info(
bs_mktid=pair.symbol, bs_mktid=pair.symbol,
broker='binance', broker='binance',
) )
return mkt, pair both = mkt, pair
_cache[fqme] = both
return both
async def stream_quotes( async def stream_quotes(